Frame type cylinder filament winding die

The invention discloses a frame type cylinder filament winding die. The frame type cylinder filament winding die comprises a frame type middle section. The two ends of the frame type middle section are connected with end enclosures which are symmetrically arranged. Mandrels are arranged at the centers of the end enclosures. A middle section shell plate is connected to the outer surface of the frame type middle section. The end enclosures are provided with end enclosure shell plates. The filament winding die adopts the manner of without a middle mandrel structure, so that the dead load is greatly reduced; supporting frames are arranged on the two sides to conduct supporting, so that the rigidity of the shell is improved; the die shell adopts a sectioned type structure, so that assembly andinternal disassembly are easy; meanwhile, a frame type middle section structure is adopted in the shell, annular frames and longitudinal ribs conduct connection and locating through locating holes inthe annular frames, shell